@dominic @BanzaiMan et al – please update Travis CI’s copy of install-jdk.sh to version 2019-05-02. It works from OpenJDK 9 to 13 (again): https://travis-ci.org/sormuras/sormuras.github.io/builds/527470511
Oracle fixed the underlying certificate issue on https://jdk.java.net and decided to bring back all download.java.net links…
